Answer:
25. 11.4h - 26
Explanation:
(I am only going to do the first one since I am running late for something, but if you need the other then just ask)
25.
(3h+4) - 6(5-1.4h)
Distribute (3h+4) - 30 + 8.4h
Simplify like terms [8.4h + 3h = 11.4h]
[30-4 = 26]
11.4h-26
Hope this helps :)
[EDIT]
Solving number 29
1/2m(10 + 6m) - 1/5m(10m+10)
(Trust me, it looks harder than it really is)
1/2m(10 + 6m) - 1/5m(10m+10)
So first we need to simplify this problem...
m(3m + 5) - 2m(m+1)
so now we can distrubute
3m^2 + 5m - 2m^2 - 2m
Simplify...
(3m^2 - 2m^2 = m^2
5m-2m = 3m)
m^2 + 3m